Is our garden safe?
February 16, 2011 12:59 PM Subscribe
Please help me decide if we should replace the pressure treated wood foundation of our raised-bed garden.
posted by lilgoyl to home & garden (11 answers total) 1 user marked this as a favorite
Our house came with a couple of raised-bed gardens (about 5'x5' each). The wood foundation of these beds consists of what appears to be old fence posts ... they have a green hue. There is a whole pile of these posts in the backyard that aren't being used for anything. It looks like the previous owner saw this pile and decided to make a couple of raised-beds with 8 of them. We want to start gardening this year and we're worried that the posts may be pressure treated and may contain arsenic. We have a small child and do not want to grow food that could contain increased levels of poisonous arsenic and other chemicals.
- How can we determine if the posts contain arsenic? (a little searching yielded this website
, but their phone is disconnected and they haven't responded to my emails)
- If the posts test positive for CCA, should we really replace them or are we over-thinking this? At this point, wouldn't the soil already be contaminated?
I don't see any stamps on the posts. At first I thought they were just painted green (because it appears to be flaking off, but when I cut out a sample to send to the website referenced above, I saw a pretty clear green hue inside of the post.